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.    按膠料復(fù)合結(jié)構(gòu)分類，可分為純膠密封條——由單一膠種構(gòu)成；二復(fù)合密封條——由密實(shí)膠和發(fā)泡海綿膠構(gòu)成，經(jīng)常在密實(shí)膠內(nèi)部在軸線方向包含金屬骨架材料；三復(fù)合密封條——由兩種密實(shí)膠(其中一種為淺色)和海綿膠構(gòu)成，通常在密實(shí)膠內(nèi)部包含金屬骨架和增強(qiáng)纖維。四復(fù)合密封條——公司在國內(nèi)率先開發(fā)和生產(chǎn)了由4種膠料構(gòu)成的復(fù)合密封條，在綿膠(泡管)的表面又包覆了一層薄薄的保護(hù)層膠，從而進(jìn)一步提高密封件的使用壽命。
    2.按材料品種分類，可分為橡膠密封條；塑料密封條；熱塑性彈性體密封條。
    3.特殊功能分類，有些密封條具有電子智能功能，如防夾傷密封條等。

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